Forum: Reliability & Maintainability Questions and Answers

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Posted by: Raul Rusu (raul.rusu@messier-dowty.on.ca )
Organization:Hispano-Suiza Canada
Date posted: Tue Dec 9 14:58:27 US/Eastern 2003
Subject: trnaszorb failure modes
Message:
Is there any available data on open type failure modes for the transient voltage suppressors (e.g. SMBJ33A)? FMD-97 lists only shorted, failed BVR and loose particle. Also, one manufacturer rep indicated that shorted and degraded types are the most common, with no info on other types of failures. Thanks!

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TVS
Satish Subramanian Thu Dec 18 10:10:13 US/Eastern 2003
Source of TVS Data
BWD Thu Dec 18 10:37:35 US/Eastern 2003

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Posted by:Haralambos Marmanis
Date posted: Thu Nov 20 15:05:49 US/Eastern 2003
Subject: Why is government supported research on sale?
Message:
Why is research that has been conducted under the funding of the US government for sale? That research has been paid by US tax payers and it should be freely available to ALL US tax payers, period.
Why do you sale these reports? Why don't we have access to that information for free? Thanks HM

Replies:
RAC Reports
Patrick Hetherington Fri Nov 21 9:41:23 US/Eastern 2003

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Posted by: Benjamin (benjamin.jeanneteau@free.fr )
Date posted: Wed Nov 19 13:26:20 US/Eastern 2003
Subject: TSMD
Message:
Hi,
I'm a french student in an 1-year postgraduate degree, in Quality and Reliability of the Electronic Components and Systems, in the University of Bordeaux. I need some informations about the "Time Stress Measurement Device" for a project. I can't find informations, or just a few, so if you have some, can you send me please ?? Thanks. PS : excuse me for my english... :)

Replies:
TSMD
BWD Thu Dec 4 15:15:08 US/Eastern 2003

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Posted by: Donato Tartaglia
Date posted: Wed Nov 19 12:48:11 US/Eastern 2003
Subject: Library maintenance
Message:
I need to delete my component library because now i have a new import file with the SAME components ( 1700 part numbers) that are now in the library but with a new field ( the component description ).
When I try to import from this file (it is a text file) I receive a message ( zero components imported because there were 1700 duplicated records). Probably one field ( Industry Part Number ?? ) is recognised like a primary key and itís impossible to duplicate. So, how can I delete 1700 components ( no multiple selection is possible in the component library interface) to perform a new, complete, import. Thank you

Replies:
Library Maintenance
Nathan Holzhauer Wed Nov 19 14:59:50 US/Eastern 2003

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Posted by: David Wegener
Date posted: Fri Nov 7 5:34:38 US/Eastern 2003
Subject: MTBF
Message:
Hallo, I need some MTBF's. I need it for a reverse osmosis and a demineralizer cartridge for a residential system. And I need the MTBF for a conductivity measurement in water. Have anybody an idea for a fuel cell ( PEM ), or for membranes?
Thanks for helping! Best regards from Germany. David Wegener

Replies: (list all replies)
MTBF calculations
Satish Subramanian Fri Nov 7 11:40:32 US/Eastern 2003
Not in NPRD 95
David Wegener Tue Nov 11 4:07:13 US/Eastern 2003
Filters
BWD Tue Nov 11 10:44:11 US/Eastern 2003

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